• 2022-05-28
    确定下图拉深件的坯料尺寸。[img=239x432]1803d08929f6824.jpg[/img][img=557x593]1803d089390b02b.png[/img]
    A: 105
    B: 90
    C: 95
    D: 135
  • 举一反三